CN204788273U - Long -term monitoring devices suitable for slope of ancient building timber structure cylinder - Google Patents
Long -term monitoring devices suitable for slope of ancient building timber structure cylinder Download PDFInfo
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- CN204788273U CN204788273U CN201520538644.6U CN201520538644U CN204788273U CN 204788273 U CN204788273 U CN 204788273U CN 201520538644 U CN201520538644 U CN 201520538644U CN 204788273 U CN204788273 U CN 204788273U
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- wooden unit
- strain sensor
- grating strain
- bragg grating
- fiber bragg
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Abstract
The utility model relates to a long -term monitoring devices suitable for slope of ancient building timber structure cylinder is set up the billet what measured circle post and stone plinth handing -over place was select by the measurement station to set up fiber grating strain sensor at the external circular arc surfaces of billet, and this fiber grating strain sensor's the other end extends to the side of stone plinth, this fiber grating strain sensor is connected to the host computer through jumper connection to optical fiber sensing demodulator, this optical fiber sensing demodulator. The utility model provides a precision is high, and stability is good, and convenient to detach that long -term monitoring devices suitable for slope of ancient building timber structure cylinder has solved actual engineering medium dip angle effectively and has laid the too high inconvenience that arouses, convenient operation, and method simple accurate, the fiber grating strain sensor who adopts.
Description
Technical field
The utility model relates to a kind of long term monitoring device being applicable to historic building structure cylinder and tilting.
Background technology
The ancient building of China experienced by the years baptism of several thousand, and timber structure is in long service, is unavoidably subject to earthquake, wind-force effect, makes the horizontal tilt of pillar be out of shape the excessive phenomenon of accumulation.Carrying out Real-Time Monitoring for pillar horizontal tilt amount in ancient building is one of important means of the historical and cultural heritage of this preciousness of protection historic building structure.Based on the principle of conservation of historic buildings, the use of ancient Wood construction and outward appearance function must be ensured by the impact of disturbance in monitoring.Therefore must ensure ancient building undisturbed to apparatus installation dismounting, and can not structural intergrity be destroyed, ensure not to be damaged to structure in laying instrument, lay convenient and swift.Lay various cylinder is convenient, and there is higher stability and corrosion resistivity.Consider the instant validity of monitoring in addition, the theoretical method of monitoring also makes every effort to easy.Monitoring method at present to column inclination, there is different limitation separately as the volume of: instrument with operation interference is large, cloth sets up an office position difficulty, layout difficulty is large, the price of instrument is too expensive, various and the mode that is restricted and structure of measuring point quantity, the permanance of instrument is not good, changes dismounting inconvenient.For this reason, a kind of applicability and the stronger monitoring method of specific aim are sought for the monitoring of tilting of the cylinder of timber structure.
Summary of the invention
The purpose of this utility model is to provide a kind of long term monitoring device being applicable to historic building structure cylinder and tilting, to overcome the defect existed in prior art; The utility model structure is simple, is easy to realize.
For achieving the above object, the technical solution of the utility model is: a kind of long term monitoring device being applicable to historic building structure cylinder and tilting, there is provided a tested cylinder and for carrying the cylindrical stone plinth of this tested cylinder, comprise: be attached at described tested cylinder side bottom and xsect is the wooden unit of annular, and fit in the side of the inner arc surface of described wooden unit and described tested cylinder, the lower surface of described wooden unit and the upper surface of described stone plinth stay establishes a gap; Also comprise the fiber Bragg grating strain sensor of the column that arrange corresponding to described wooden unit, one end of described fiber Bragg grating strain sensor is attached at the exterior arc surface of described wooden unit, the other end of described fiber Bragg grating strain sensor is attached at the side of described stone plinth, and described fiber Bragg grating strain sensor is vertically arranged; Described fiber Bragg grating strain sensor is connected to a Fibre Optical Sensor detuner through wire jumper, and described Fibre Optical Sensor detuner is connected to a main frame.
In the utility model one embodiment, described wooden unit comprises the first wooden unit, the second wooden unit and the 3rd wooden unit, described first wooden unit, described second wooden unit and the rectangular triangle of described 3rd wooden unit are arranged, and described first wooden unit exterior arc surface place is provided with the first fiber Bragg grating strain sensor, described second wooden unit exterior arc surface place is provided with the second fiber Bragg grating strain sensor, and described 3rd wooden unit exterior arc surface place is provided with the 3rd fiber Bragg grating strain sensor.
In the utility model one embodiment, described first fiber Bragg grating strain sensor is arranged at the midline of described first wooden unit exterior arc surface; Described second fiber Bragg grating strain sensor is arranged at the midline of described second wooden unit exterior arc surface; Described 3rd fiber Bragg grating strain sensor is arranged at the midline of described 3rd wooden unit exterior arc surface.
In the utility model one embodiment, described first wooden unit is 1.05d to the internal diameter of the xsect annulus of described 3rd wooden unit, and external diameter is D; Wherein, d is the diameter of described tested cylinder, and D is the diameter of described stone plinth.
In the utility model one embodiment, also comprise: be arranged at the tack coat between described wooden unit inner arc surface and described tested cylindrical side, described wooden unit is fitted through this tack coat and described tested cylindrical side.
In the utility model one embodiment, the thickness of described tack coat is 0.05d, and wherein, d is the diameter of described tested cylinder.In the utility model one embodiment, described clearance height is D1.
Compared to prior art, the utility model has following beneficial effect: a kind of long term monitoring device being applicable to historic building structure cylinder and tilting that the utility model proposes, according to the singularity that timber structure cylinder and stone plinth keep flat, adopt based on fiber Bragg grating strain sensor and similar Quadrilateral Method, overcome the limitation of conventional monitoring methods in ancient building monitoring field, there is very strong specific aim and practicality, and very convenient in apparatus installation dismounting, be conducive to the monitoring of chronicity.And, in the inventive solutions measured position is arranged at cylinder suspension column and stone plinth junction, cloth sets up an office position conveniently, not by the impact of structure, be applicable to the pillar monitoring in corner post, side column, the various actual building situation of center pillar, and economical and practical in price, eliminate expensive instrument expense, in Practical Project, be applicable to be laid in all pillars of building.
Accompanying drawing explanation
Fig. 1 is a kind of cross sectional representation being applicable to wooden unit in the long term monitoring device of historic building structure cylinder inclination in the utility model one embodiment.
Fig. 2 be in the utility model a kind of be applicable to historic building structure cylinder tilt long term monitoring device in fiber Bragg grating strain sensor position view.
Fig. 3 is a kind of connection diagram being applicable to fiber Bragg grating strain sensor and demodulated equipment in the long term monitoring device of historic building structure cylinder inclination in the utility model.
Fig. 4 is that in the utility model one embodiment, a kind of entirety being applicable to the long term monitoring device that historic building structure cylinder tilts lays schematic diagram.
Fig. 5 is the wooden unit installation position vertical view in the utility model one embodiment in a kind of long term monitoring device being applicable to the inclination of historic building structure cylinder.
Fig. 6 is a kind of connection diagram being applicable to three fiber Bragg grating strain sensors and demodulated equipment in the long term monitoring device of historic building structure cylinder inclination in the utility model one embodiment.
[label declaration]: 1-wooden unit; 111-wooden unit exterior arc surface; 12-wooden unit inner arc surface; 2-tack coat; The tested cylinder of 3-; 4-fiber Bragg grating strain sensor; 5-stone plinth; 6-first wooden unit; 7-second wooden unit; 8-the 3rd wooden unit; 9-first fiber Bragg grating strain sensor; 10-second fiber Bragg grating strain sensor; 11-the 3rd fiber Bragg grating strain sensor.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is specifically described.
The utility model is a kind of long term monitoring device being applicable to historic building structure cylinder and tilting, there is provided a tested cylinder 3 and for carrying the cylindrical stone plinth 5 of this tested cylinder, comprise: as shown in Fig. 1 ~ Fig. 3, be attached at described tested cylinder side bottom and xsect is the wooden unit 1 of annular, and the inner arc surface 12 of described wooden unit 1 is fitted with the side of described tested cylinder 3, the lower surface of described wooden unit 1 and the upper surface of described stone plinth 5 stay establishes a gap; Also comprise the fiber Bragg grating strain sensor 4 of the column that arrange corresponding to described wooden unit 1, one end of described fiber Bragg grating strain sensor 4 is attached at the exterior arc surface 111 of described wooden unit 1, the other end of described fiber Bragg grating strain sensor 4 is attached at the side of described stone plinth 5, and described fiber Bragg grating strain sensor 4 is vertically arranged; Described fiber Bragg grating strain sensor 4 is connected to a Fibre Optical Sensor detuner through wire jumper, and described Fibre Optical Sensor detuner is connected to a main frame.
Further, in the present embodiment, as shown in Fig. 4 ~ Fig. 6, described wooden unit 1 comprises the first wooden unit 6, second wooden unit 7 and the 3rd wooden unit 8, described first wooden unit 6, described second wooden unit 7 and described 3rd wooden unit 8 at right angles triangle are arranged, as shown in Figure 5, the mid point of the first wooden unit 6 Inner arc circumference and the mid point of the 3rd wooden unit 8 inner arc surface circumference cross the circle of tested cylinder cross circular section; And described first wooden unit 6 exterior arc surface place is provided with the first fiber Bragg grating strain sensor 9, described second wooden unit 7 exterior arc surface place is provided with the second fiber Bragg grating strain sensor 10, and described 3rd wooden unit 8 exterior arc surface place is provided with the 3rd fiber Bragg grating strain sensor 11.
Further, in the present embodiment, as shown in Figure 5, described first fiber Bragg grating strain sensor is arranged at the midline of described first wooden unit exterior arc surface; Described second fiber Bragg grating strain sensor is arranged at the midline of described second wooden unit exterior arc surface; Described 3rd fiber Bragg grating strain sensor is arranged at the midline of described 3rd wooden unit exterior arc surface, as shown in Figure 5, the first fiber Bragg grating strain sensor 9, second fiber Bragg grating strain sensor 10 and the 3rd fiber Bragg grating strain sensor 11 also at right angles triangle setting.
Further, in the present embodiment, described first wooden unit is 1.05d to the internal diameter of the xsect annulus of described 3rd wooden unit, and external diameter is D; Wherein, d is the diameter of described tested cylinder, and D is the diameter of described stone plinth.
Further, in the present embodiment, as shown in Figure 1, be arranged at the tack coat between described wooden unit inner arc surface and described tested cylindrical side, described wooden unit is fitted through this tack coat and described tested cylindrical side.
Further, in the present embodiment, the thickness of described tack coat is 0.05d, and wherein, d is the diameter of described tested cylinder.
Further, in the present embodiment, described clearance height is D1, D1 value is 2 ~ 5cm, and can carry out arranging or choosing according to site specific.
Be more than preferred embodiment of the present utility model, all changes done according to technical solutions of the utility model, when the function produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (7)
1. the long term monitoring device being applicable to historic building structure cylinder and tilting, there is provided a tested cylinder and for carrying the cylindrical stone plinth of this tested cylinder, it is characterized in that, comprise: be attached at described tested cylinder side bottom and xsect is the wooden unit of annular, and fit in the side of the inner arc surface of described wooden unit and described tested cylinder, the lower surface of described wooden unit and the upper surface of described stone plinth stay establishes a gap; Also comprise the fiber Bragg grating strain sensor of the column that arrange corresponding to described wooden unit, one end of described fiber Bragg grating strain sensor is attached at the exterior arc surface of described wooden unit, the other end of described fiber Bragg grating strain sensor is attached at the side of described stone plinth, and described fiber Bragg grating strain sensor is vertically arranged; Described fiber Bragg grating strain sensor is connected to a Fibre Optical Sensor detuner through wire jumper, and described Fibre Optical Sensor detuner is connected to a main frame.
2. a kind of long term monitoring device being applicable to historic building structure cylinder and tilting according to claim 1, it is characterized in that, described wooden unit comprises the first wooden unit, the second wooden unit and the 3rd wooden unit, described first wooden unit, described second wooden unit and the rectangular triangle of described 3rd wooden unit are arranged, and described first wooden unit exterior arc surface place is provided with the first fiber Bragg grating strain sensor, described second wooden unit exterior arc surface place is provided with the second fiber Bragg grating strain sensor, and described 3rd wooden unit exterior arc surface place is provided with the 3rd fiber Bragg grating strain sensor.
3. a kind of long term monitoring device being applicable to historic building structure cylinder and tilting according to claim 2, it is characterized in that, described first fiber Bragg grating strain sensor is arranged at the midline of described first wooden unit exterior arc surface; Described second fiber Bragg grating strain sensor is arranged at the midline of described second wooden unit exterior arc surface; Described 3rd fiber Bragg grating strain sensor is arranged at the midline of described 3rd wooden unit exterior arc surface.
4. a kind of long term monitoring device being applicable to historic building structure cylinder and tilting according to claim 3, it is characterized in that, described first wooden unit is 1.05d to the internal diameter of the xsect annulus of described 3rd wooden unit, and external diameter is D; Wherein, d is the diameter of described tested cylinder, and D is the diameter of described stone plinth.
5. a kind of long term monitoring device being applicable to historic building structure cylinder and tilting according to claim 1, it is characterized in that, also comprise: be arranged at the tack coat between described wooden unit inner arc surface and described tested cylindrical side, described wooden unit is fitted through this tack coat and described tested cylindrical side.
6. a kind of long term monitoring device being applicable to historic building structure cylinder and tilting according to claim 5, it is characterized in that, the thickness of described tack coat is 0.05d, and wherein, d is the diameter of described tested cylinder.
7. a kind of long term monitoring device being applicable to historic building structure cylinder and tilting according to claim 1, it is characterized in that, described clearance height is D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538644.6U CN204788273U (en) | 2015-07-23 | 2015-07-23 | Long -term monitoring devices suitable for slope of ancient building timber structure cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538644.6U CN204788273U (en) | 2015-07-23 | 2015-07-23 | Long -term monitoring devices suitable for slope of ancient building timber structure cylinder |
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| CN204788273U true CN204788273U (en) | 2015-11-18 |
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| CN201520538644.6U Active CN204788273U (en) | 2015-07-23 | 2015-07-23 | Long -term monitoring devices suitable for slope of ancient building timber structure cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631526A (en) * | 2019-10-17 | 2019-12-31 | 青海民族大学 | Measurement system for ancient building colored drawing roof beam displacement |
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2015
- 2015-07-23 CN CN201520538644.6U patent/CN204788273U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631526A (en) * | 2019-10-17 | 2019-12-31 | 青海民族大学 | Measurement system for ancient building colored drawing roof beam displacement |
| CN110631526B (en) * | 2019-10-17 | 2021-03-05 | 青海民族大学 | Measurement system for ancient building colored drawing roof beam displacement |
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